package com.leslie.hhcommunity.controller;

import com.leslie.hhcommunity.entity.*;
import com.leslie.hhcommunity.event.EventProducer;
import com.leslie.hhcommunity.service.CommentService;
import com.leslie.hhcommunity.service.DiscussPostService;
import com.leslie.hhcommunity.service.LikeService;
import com.leslie.hhcommunity.service.UserService;
import com.leslie.hhcommunity.util.CommunityConstant;
import com.leslie.hhcommunity.util.CommunityUtil;
import com.leslie.hhcommunity.util.HostHolder;
import com.leslie.hhcommunity.util.RedisKeyUtil;
import io.netty.util.internal.UnstableApi;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.*;

/**
 * @author
 * @PackageName:com.leslie.hhcommunity.controller
 * @ClassnName:DiscussPostController
 * @Description:
 * @Date 2022/1/3  17:14
 */
@Controller
@RequestMapping("/discuss")
public class DiscussPostController implements CommunityConstant {

	@Autowired
	HostHolder hostHolder;
	@Autowired
	DiscussPostService discussPostService;
	@Autowired
	UserService userService;
	@Autowired
	CommentService commentService;
	@Autowired
	LikeService likeService;
	@Autowired
	EventProducer eventProducer;
	@Autowired
	RedisTemplate redisTemplate;


	/**
	 * 发帖子
	 *
	 * @param title
	 * @param content
	 * @return
	 */
	@RequestMapping(value = "/add", method = RequestMethod.POST)
	@ResponseBody
	public String addDiscussPost(String title, String content) {
		User user = hostHolder.getUser();
		if (user == null) {
			return CommunityUtil.getJSONString(403, "您还没有登录哦");
		}
		DiscussPost post = new DiscussPost();
		post.setUserId(user.getId());
		post.setTitle(title);
		post.setContent(content);
		post.setCreateTime(new Date());
		discussPostService.insertDiscussPost(post);

		//触发发帖事件
		Event event = new Event()
				.setTopic(TOPIC_PUBLISH)
				.setUserId(user.getId())
				.setEntityType(ENTITY_TYPE_POST)
				.setEntityId(post.getId());
		eventProducer.fireEvent(event);

		//计算帖子分数
		String redisKey = RedisKeyUtil.getPostScoreKey();
		redisTemplate.opsForSet().add(redisKey, post.getId());

		return CommunityUtil.getJSONString(0, "发布成功");
	}

	/**
	 * 查询帖子
	 *
	 * @param discussPostId
	 * @return
	 */
	@RequestMapping("/detail/{discussPostId}")
	public String getDiscussPost(@PathVariable("discussPostId") int discussPostId, Model model, Page page) {
		//帖子
		DiscussPost post = discussPostService.selectDiscussPostById(discussPostId);
		model.addAttribute("post", post);
		//作者
		User user = userService.findUserById(post.getUserId());
		model.addAttribute("user", user);

		//点赞数量
		long likeCount = likeService.findEntityLikeCount(ENTITY_TYPE_POST, discussPostId);
		model.addAttribute("likeCount", likeCount);
		//点赞状态
		int likeStatus = hostHolder.getUser() == null ? 0 :
				likeService.findEntityLikeStatus(hostHolder.getUser().getId(), ENTITY_TYPE_POST, discussPostId);
		model.addAttribute("likeStatus", likeStatus);

		//评论分页信息
		page.setLimit(5);
		page.setPath("/discuss/detail/" + discussPostId);
		page.setRows(post.getCommentCount());

		// 评论：给帖子的评论
		// 回复：给评论的评论
		//评论列表
		List<Comment> commentList = commentService.selectCommentsByEntity(ENTITY_TYPE_POST, post.getId(), page.getOffset(), page.getLimit());
		//评论VO列表
		List<Map<String, Object>> commentVoList = new ArrayList<>();
		if (commentList != null) {
			for (Comment comment : commentList) {
				//评论VO
				Map<String, Object> commentVo = new HashMap<>();
				//评论
				commentVo.put("comment", comment);
				//作者
				commentVo.put("user", userService.findUserById(comment.getUserId()));

				//点赞数量
				likeCount = likeService.findEntityLikeCount(ENTITY_TYPE_COMMENT, comment.getId());
				commentVo.put("likeCount", likeCount);
				//点赞状态
				likeStatus = hostHolder.getUser() == null ? 0 :
						likeService.findEntityLikeStatus(hostHolder.getUser().getId(), ENTITY_TYPE_COMMENT, comment.getId());
				commentVo.put("likeStatus", likeStatus);

				//回复列表
				List<Comment> replyList = commentService.selectCommentsByEntity(ENTITY_TYPE_COMMENT, comment.getId(), 0, Integer.MAX_VALUE);
				// 回复VO列表
				List<Map<String, Object>> replyVoList = new ArrayList<>();
				if (replyList != null) {
					for (Comment reply : replyList) {
						Map<String, Object> replyVo = new HashMap<>();
						// 回复
						replyVo.put("reply", reply);
						// 作者
						replyVo.put("user", userService.findUserById(reply.getUserId()));
						// 回复目标
						User target = reply.getTargetId() == 0 ? null : userService.findUserById(reply.getTargetId());
						replyVo.put("target", target);

						//点赞数量
						likeCount = likeService.findEntityLikeCount(ENTITY_TYPE_COMMENT, reply.getId());
						replyVo.put("likeCount", likeCount);
						//点赞状态
						likeStatus = hostHolder.getUser() == null ? 0 :
								likeService.findEntityLikeStatus(hostHolder.getUser().getId(), ENTITY_TYPE_COMMENT, reply.getId());
						replyVo.put("likeStatus", likeStatus);

						replyVoList.add(replyVo);
					}
				}
				commentVo.put("replys", replyVoList);
				// 回复数量
				int replyCount = commentService.selectCountByEntity(ENTITY_TYPE_COMMENT, comment.getId());
				commentVo.put("replyCount", replyCount);

				commentVoList.add(commentVo);
			}
		}
		model.addAttribute("comments", commentVoList);
		return "/site/discuss-detail";
	}


	/**
	 * 顶置
	 *
	 * @param id
	 * @return
	 */
	@RequestMapping(value = "/top", method = RequestMethod.POST)
	@ResponseBody
	public String setTop(int id) {
		discussPostService.updateType(id, 1);

		// 触发发帖事件
		Event event =
				new Event()
						.setTopic(TOPIC_PUBLISH)
						.setUserId(hostHolder.getUser().getId())
						.setEntityType(ENTITY_TYPE_POST)
						.setEntityId(id);
		eventProducer.fireEvent(event);

		return CommunityUtil.getJSONString(0);
	}

	/**
	 * 加精
	 *
	 * @param id
	 * @return
	 */
	@RequestMapping(value = "/wonderful", method = RequestMethod.POST)
	@ResponseBody
	public String setWonderful(int id) {
		discussPostService.updateStatus(id, 1);

		// 触发发帖事件
		Event event =
				new Event()
						.setTopic(TOPIC_PUBLISH)
						.setUserId(hostHolder.getUser().getId())
						.setEntityType(ENTITY_TYPE_POST)
						.setEntityId(id);
		eventProducer.fireEvent(event);

		// 计算帖子的分数
		String redisKey = RedisKeyUtil.getPostScoreKey();
		redisTemplate.opsForSet().add(redisKey,id);

		return CommunityUtil.getJSONString(0);
	}

	/**
	 * 删帖
	 *
	 * @param id
	 * @return
	 */
	@RequestMapping(value = "/delete", method = RequestMethod.POST)
	@ResponseBody
	public String setDelete(int id) {
		discussPostService.updateStatus(id, 2);

		// 触发删帖事件
		Event event =
				new Event()
						.setTopic(TOPIC_DELETE)
						.setUserId(hostHolder.getUser().getId())
						.setEntityType(ENTITY_TYPE_POST)
						.setEntityId(id);
		eventProducer.fireEvent(event);

		return CommunityUtil.getJSONString(0);
	}
}
